ROUNDABOUTS: AN INFORMATIONAL GUIDE

The guidance supplied in this document is based on established international and U.S. practices and is supplemented by recent research. The guide is comprehensive in recognition of the diverse needs of transportation professionals and the public for introductory material through design detail, as well as the wide range of potential applications of roundabout intersections. The following topics are addressed: definition of a roundabout and what distinguishes roundabouts from traffic circles; public acceptance and legal issues associated with roundabouts; consideration of all user modes, including heavy vehicles, buses, transit, bicycles, and pedestrians; a methodology for identifying appropriate sites for roundabouts and the range of conditions for which roundabouts offer optimal performance; methodologies for estimating roundabout capacity, delays, and queues with reference to the "Highway Capacity Manual"; design principles and guidance on safety and geometric design, with reference to applicable national standards such as the AASHTO "Policy on Geometric Design of Highways and Streets"; guidelines for control features such as signing and pavement markings, with reference to the "Manual on Uniform Traffic Control Devices"; illumination; and landscaping.

• Record URL:
  http://www.fhwa.dot.gov/publications/research/safety/00067/00067.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/15382
• Corporate Authors:

  Kittelson and Associates, Incorporated

  610 SW Alder Street, Suite 700
  Portland, OR  United States  97205

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Authors:
  • Robinson, B W
  • Rodegerdts, Lee
  • Scarborough, W
  • Kittelson, W
  • Troutbeck, R
  • Brilon, W
  • Bondzio, L
  • Courage, K
  • Kyte, M
  • Mason, J
  • Flannery, A
  • Myers, E
  • BUNKER, J
  • Jacquemart, G
• Publication Date: 2000-6

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References;
• Pagination: 284 p.

Subject/Index Terms

• TRT Terms: Acceptance; Definitions; Design; Design standards; Geometric design; Guidelines; Guides to information; Highway capacity; Highway safety; Landscaping; Legal factors; Lighting; Road markings; Roundabouts; Traffic delays; Traffic queuing; Traffic signs
• Identifier Terms: Highway Capacity Manual; Manual on Uniform Traffic Control Devices
• Subject Areas: Design; Highways; Law; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00795288
• Record Type: Publication
• Report/Paper Numbers: FHWA-RD-00-067,, Project 2425,, Informational Guide Book
• Contract Numbers: DTFH61-97-R-00038
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Jul 14 2000 12:00AM